Matt Kettler wrote: > Per Jessen wrote: >>> True. Although this is the SpamAssassin mailing list, so, within >>> context of scored systems, the blackholes.us might be of some use. >>> That said, if you're using SA, it's much lighter weight to use the >>> RelayCountries plugin. >> >> That seems hard to believe - lighter than a single local DNS query? >> > Single local query of a database. Not everyone using blackholes.us is > doing zone transfers, so for some folks it's heavy-weight because it's > an off-site DNS query.
Yeah, unless you serve the blackholes list locally, it's slow. (you don't need to do zone-transfers). > When compared to someone using zone transfers, it's still likely to be > marginally faster because the Ip::Country::Fast code and database are > both optimized for doing this kind of query very quickly. I don't know the RelayCountries plugin nor the code, but I have difficulty believing that querying any list served by rbldnsd would be any slower. /Per Jessen, Zürich
